Acoustic characterization of air saturated porous materials at audible frequencies

Abstract : An acoustic method based on sound transmission is proposed for measuring the viscous and thermal permeability, viscous and thermal tortuosity, and porosity of porous materials having a rigid frame at low frequencies. The proposed method is based on a temporal model of the direct and inverse scattering problems for the propagation of transient audible frequency waves in a homogeneous isotropic slab of porous material having a rigid frame. The acoustic parameters are determined from the solution of the inverse problem. The minimization between experiment and theory is made in the time domain. Tests are performed using industrial plastic foams.
Type de document :
Communication dans un congrès
11ème Congrès Français d'Acoustique, Nantes : France (2012), Apr 2012, France. pp.ACOUSTICS2012/359, 2012
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https://hal.archives-ouvertes.fr/hal-00721150
Contributeur : Zine El Abiddine Fellah <>
Soumis le : jeudi 26 juillet 2012 - 16:34:27
Dernière modification le : lundi 10 décembre 2018 - 14:54:02

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  • HAL Id : hal-00721150, version 1

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M. Sadouki, Mohamed Fellah, Zine El Abiddine Fellah, Erick Ogam, Claude Dépollier. Acoustic characterization of air saturated porous materials at audible frequencies. 11ème Congrès Français d'Acoustique, Nantes : France (2012), Apr 2012, France. pp.ACOUSTICS2012/359, 2012. 〈hal-00721150〉

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